The Gadsden flag, that includes a rattlesnake and the phrase "Don't Tread on Me

https://zanderimwj093.brightpathdigest.com/posts/the-history-behind-the-civil-war-flag-symbols-of-a-nation-divided

The Gadsden flag, proposing a rattlesnake and the word "Don't Tread on Me," turned into adopted with the aid of a few Confederate models as a image of resistance towards perceived oppression.